Component Testing Procedure
WARNING: This page is about a different car, the 2005 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
MAIN LIGHT SWITCH - COMPONENT TESTING
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Autolamp Circuit | 4 and 7, C205a | Autolamps | Closed circuit |
| Off | Open circuit | ||
| Parking Lamps | |||
| Headlamps | |||
| Parking lights circuit | 5 and 7, C205a | Autolamps | Open circuit |
| Off | |||
| Parking Lamps | Closed circuit | ||
| Headlamps | Open circuit | ||
| Headlamp circuit | 10 and 7, C205a | Autolamps | Open circuit |
| Off | |||
| Parking Lamps | |||
| Headlamps | Closed circuit | ||
| Interior lamps Circuit | 5 and 4, C205b | Interior lamps | Closed circuit |
| Off | Open circuit | ||
| Illumination dimmer resistor | 6 and 4, C205b | Rotate knob clockwise | Ohmmeter will show smoothly increasing resistance |